Elevator refurbishment method
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United States of America Patent
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Jul 5, 2016
Grant Date -
Jan 16, 2014
app pub date -
Jun 6, 2011
filing date -
Jun 6, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
An elevator renovation method, which is capable of reducing a renovation period and enabling effective use of a space when an existing hydraulic elevator is renovated to a non-hydraulic elevator. The elevator renovation method involves renovating a hydraulic elevator in which a plunger provided integrally with a car is hydraulically driven to a non-hydraulic elevator. The elevator renovation method includes; providing a driving device for generating a driving force for raising the car; leaving the plunger so that the plunger can be raised and lowered inside an existing jack; and obtaining the non-hydraulic elevator by exerting the driving force of the driving device in a direction in which the plunger is moved up to raise the car.
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